To automatically understand client requests found in emails, Julie relies on Artificial Intelligence (AI) and, in particular, Natural Language Processing (NLP). NLP is a subfield of AI that deals with various problems ranging from text comprehension to text generation.

Early applications in NLP focused on machine translation, as evidenced by the Georgetown-IBM experiment (1954) which aimed to automatically convert about sixty sentences from Russian to English. In this experiment, the translation problem was solved using 6 grammatical rules and a set of 250 lexical items.